Revert parallelization of callability which causes deadlocks. Correctly tackle underlying speed issue by saving temporary file when doing filtering over nblock regions
Revert parallelization of callability which causes deadlocks. Correctly tackle underlying speed issue by saving temporary file when doing filtering over nblock regions

elkingtonmcb/bcbio-nextgen,lpantano/bcbio-nextgen,mjafin/bcbio-nextgen,biocyberman/bcbio-nextgen,chapmanb/bcbio-nextgen,gifford-lab/bcbio-nextgen,verdurin/bcbio-nextgen,verdurin/bcbio-nextgen,lbeltrame/bcbio-nextgen,mjafin/bcbio-nextgen,biocyberman/bcbio-nextgen,hjanime/bcbio-nextgen,lbeltrame/bcbio-nextgen,brainstorm/bcbio-nextgen,a113n/bcbio-nextgen,elkingtonmcb/bcbio-nextgen,a113n/bcbio-nextgen,gifford-lab/bcbio-nextgen,verdurin/bcbio-nextgen,Cyberbio-Lab/bcbio-nextgen,elkingtonmcb/bcbio-nextgen,chapmanb/bcbio-nextgen,guillermo-carrasco/bcbio-nextgen,hjanime/bcbio-nextgen,brainstorm/bcbio-nextgen,lpantano/bcbio-nextgen,hjanime/bcbio-nextgen,biocyberman/bcbio-nextgen,brainstorm/bcbio-nextgen,fw1121/bcbio-nextgen,vladsaveliev/bcbio-nextgen,fw1121/bcbio-nextgen,Cyberbio-Lab/bcbio-nextgen,lbeltrame/bcbio-nextgen,vladsaveliev/bcbio-nextgen,gifford-lab/bcbio-nextgen,fw1121/bcbio-nextgen,a113n/bcbio-nextgen,guillermo-carrasco/bcbio-nextgen,vladsaveliev/bcbio-nextgen,guillermo-carrasco/bcbio-nextgen,mjafin/bcbio-nextgen,Cyberbio-Lab/bcbio-nextgen,lpantano/bcbio-nextgen,chapmanb/bcbio-nextgen